Historically, Canon hasn't been known for making pancake lenses. Just a few years ago it dipped its toes into the water of the ultra-slim prime lens space with the EF 40mm f/2.8 STM ($179.00 at Dell) for full-frame camera bodies. Joining it is the inexpensive Canon EF-S 24mm f/2.8 STM ($149.99) lens for APS-C cameras. When paired with a Rebel or another crop-sensor Canon body, its field of view is just a little bit wider than the 40mm on a full-frame body, equivalent to about 38mm. It's quite sharp, even at f/2.8, and while it does show some darkening of corners at its widest aperture, that's a small price to pay for its compact form factor, especially when you consider its price. Anyone buying a Canon SLR should purchase it as a compact supplement to the run-of-the-mill EF-S 18-55mm f/3.5-5.6 IS STM ($149.99 at Amazon) lens that's bundled with most Rebel bodies. It's an easy pick for our Editors' Choice award. The EF-S 24mm ( at Amazon)  measures just 0.9 by 2.7 inches (HD), we...

The Canon EF-S 24mm f/2.8 STM is the sharp, compact, and inexpensive lens that every Canon shooter should own.

Quite sharp; Very compact; Classic wide-angle field of view; Silent STM focus motor; Affordable

Lacks image stabilization; Disappointing manual focus experience; Noticeable vignette at f/2.8

This compact wide-angle pancake lens for Canon APS-C format digital SLRs features Canon's latest stepping focusing motor technology, which promises, smoother, quieter autofocus performance, which is especially suited to recording video. The lens is super-cheap as well being priced at around ￡170.

I was tor between buying the 40mm pancake lens and this, the 24mm pancake. I decided on the 24, since I already have the 50mm 1.8. This lens is amazing! I never thought I would love taking wide angle shots so much, it is such a new experience for me. Very sharp, especially around f5.6.

Handling and Features Performance Verdict Specification This compact wide-angle pancake lens for Canon APS-C format digital SLRs features Canon's latest stepping focusing motor technology, which promises, smoother, quieter autofocus performance, which is especially suited to recording video.

Excellent sharpness; Lightweight; Compact; Fast focusing; Good value for money

No hood included as standard

There's not a lot to add that the above paragraphs don't spell out in glowing detail -- it's small, it's economical, and it has great test results. I see it ending up in a lot of presents this holiday season.

The Canon EF-S 24mm f/2.8 STM is a tiny prime lens that delivers surprisingly good image quality given its inexpensive price-point, making it a great moderate wide-angle addition to a compact, lightweight EOS kit.

Back in 2012, Canon introduced the Canon EF 40mm f/2.8 STM - a full format pancake lens. Pancake lenses have a short barrel in an attempt to minimize the size of the overall setup.

Previous reviews are for other Canon 24mm's. The Pancake STM is just now released and got my copy yesterday. Small (same as 40mm), sharp, small and sharp. Perfect for what it is, small and sharp. Disappointing Canon didn't improve small STM motor over the 40mm as it is audible on my SL1.

Sharp; Small

Stm Not Quiet Enough

This lens is a great compact lens. If you wanted to travel as light as possible, this is a great choice. It is wide enough for scenic shots, and great for street and distorted people shots. I wish this version had an Ultrasonic motor, but for the price, I can live with the buzzy motor.

Love this lens on my 7d . First off I have to do some micro adjustment of -6 to get the full potential of the lens. Its a keeper for sure. CA is tollerabe and can be easily fixed .